Remove unused RenderPassDrawQuad fields

cc/layers/render_surface_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/render_surface_impl.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
@@ skipping 48 matching lines @@
 
 
 void RenderSurfaceImpl::SetClipRect(const gfx::Rect& clip_rect) {
   if (clip_rect_ == clip_rect)
     return;
 
   surface_property_changed_ = true;
   clip_rect_ = clip_rect;
 }
 
-bool RenderSurfaceImpl::ContentsChanged() const {
-  return !damage_tracker_->current_damage_rect().IsEmpty();
-}
-
 void RenderSurfaceImpl::SetContentRect(const gfx::Rect& content_rect) {
   if (content_rect_ == content_rect)
     return;
 
   surface_property_changed_ = true;
   content_rect_ = content_rect;
 }
 
 bool RenderSurfaceImpl::SurfacePropertyChanged() const {
   // Surface property changes are tracked as follows:
@@ skipping 131 matching lines @@
 
     mask_uv_rect = gfx::RectF(
         uv_scale_x * content_rect_.x() / content_rect_.width(),
         uv_scale_y * content_rect_.y() / content_rect_.height(),
         uv_scale_x,
         uv_scale_y);
   }
 
   ResourceProvider::ResourceId mask_resource_id =
       mask_layer ? mask_layer->ContentsResourceId() : 0;
-  gfx::Rect contents_changed_since_last_frame =
-      ContentsChanged() ? content_rect_ : gfx::Rect();
 
   RenderPassDrawQuad* quad =
       render_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
   quad->SetNew(shared_quad_state,
                content_rect_,
                visible_content_rect,
                render_pass_id,
-               for_replica,
                mask_resource_id,
-               contents_changed_since_last_frame,
                mask_uv_rect,
                owning_layer_->filters(),
                owning_layer_->background_filters());
 }
 
 }  // namespace cc